A Study To Determine The Impact Of Cracking On Load Transfer Efficiency Of Rigid Airfield Pavements PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download A Study To Determine The Impact Of Cracking On Load Transfer Efficiency Of Rigid Airfield Pavements PDF full book. Access full book title A Study To Determine The Impact Of Cracking On Load Transfer Efficiency Of Rigid Airfield Pavements.
Author | : C. Cunliffe |
Publisher | : |
Total Pages | : 16 |
Release | : 2014 |
Genre | : Dowelled joints |
ISBN | : |
Download A Study to Determine the Impact of Cracking on Load Transfer Efficiency of Rigid Airfield Pavements Book in PDF, ePub and Kindle
The mechanistic evaluation of pavement utilizing full-scale test data is an important component to the study of pavement behavior. This study focuses on the use of concrete strain gages (CSG) and crack location data to evaluate the effect of localized cracking on the stress-based load transfer efficiency (LTE (S)) of transverse doweled pavement joints. Concrete strain gage data generated from the full-scale testing carried out by the Federal Aviation Administration (FAA) at the National Airport Pavement Test Facility (NAPTF) has been analyzed in this study. Load transfer efficiency was determined from paired concrete strain gages for the test vehicle moving in opposite directions at two specific locations, resulting in four distinct cases of LTE (S). It was found that LTE (S) varies as loading progresses on the test sections, especially after cracking near the joint has occurred on the slabs. The design constant of 25 % LTE (S) appears to be reasonably conservative before cracking occurs at the joint but overestimates joint LTE (S) thereafter. Additionally, peak strains from gages located at the joint can be used to evaluate the behavior of LTE (S) during the formation of cracks on the slab, in particular the case where the cracks have formed close to the doweled joint but are not yet visible on the surface.
Author | : Emmanuel B. Owusu-Antwi |
Publisher | : |
Total Pages | : 79 |
Release | : 1990 |
Genre | : Pavements |
ISBN | : |
Download Assessing Load Transfer Across Joints and Cracks in Rigid Pavements Using the Falling Weight Deflectometer Book in PDF, ePub and Kindle
This study was instituted primarily to develop techniques for assessing the load transfer efficiency of joints and cracks in rigid pavements using the Falling Weight Deflectometer (FWD) and to determine the factors influencing load transfer efficiency across such discontinuities. This report describes the evaluation of procedures for assessing the load transfer efficiency of transverse joints and cracks using FWD deflection data collected on a controlled jointed reinforced concrete pavement research facility in a laboratory study. The application of the procedures--on a number of jointed reinforced concrete pavement (JRCP) and continuously reinforced concrete pavement (CRCP) test sections on in-service rigid pavements, in order to determine their suitability for implementation in the field--is also discussed.
Author | : Ashish Wadkar |
Publisher | : |
Total Pages | : 180 |
Release | : 2010 |
Genre | : Civil engineering |
ISBN | : |
Download Study of Load Transfer Efficiency of Airfield Rigid Pavement Joints Based on Stresses and Deflections Book in PDF, ePub and Kindle
Author | : Wynand JvdM. Steyn |
Publisher | : Transportation Research Board |
Total Pages | : 257 |
Release | : 2012 |
Genre | : Technology & Engineering |
ISBN | : 0309223660 |
Download Significant Findings from Full-scale Accelerated Pavement Testing Book in PDF, ePub and Kindle
"TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 433: Significant Findings from Full-Scale Accelerated Pavement Testing documents and summarizes significant findings from the various experimental activities associated with full-scale accelerated pavement testing (f-sAPT) programs that have taken place between 2000 and 2011. The report also identifies gaps in knowledge related to f-sAPT and where future research may be needed. NCHRP Synthesis 433 is designed to expand the f-sAPT base of knowledge documented in NCHRP Syntheses 325 and 235, both with the same title of Significant Findings from Full-Scale Accelerated Pavement Testing. f-sAPT is the controlled application of a wheel loading, at or above the appropriate legal load limit, to a pavement system to determine pavement response in a compressed time period. The acceleration of damage is achieved by one or more of the following factors: increased repetitions, modified loading conditions, imposed climatic conditions, and thinner pavements with a decreased structural capacity which have shorter design lives"--
Author | : G. R. Rada |
Publisher | : |
Total Pages | : 88 |
Release | : 1987 |
Genre | : Pavements |
ISBN | : |
Download Performance of Cracked and Seated Rigid Airport Pavements Book in PDF, ePub and Kindle
Despite the growing popularity of the crack and seat technique, little guidance is available for use in evaluating and designing overlays for cracked and seated airfield pavements. Towards solving this problem, a case study was undertaken to compare in-situ characteristics and overlay requirements of three different pavement sections at Suffolk Municipal Airport, Virginia. Nondestructive testing was used to determine the in-situ pavement properties and visual surveys were conducted to assess the condition rating of the pavements. The results of the NDT testing program were used to predict and compare the PCC layer moduli and to design AC overlays. The results of the study indicate that: (1) while the use of the crack and seat technique appears to be effective, reflective cracking is not eliminated: (2) the strength of the PCC layer is significantly reduced after cracking and seating and hence, thicker AC overlays are required and (3) a greater degree of cracking before placing the overlay would have been helpful. The uses of a modified FAA flexible pavement procedure for the design of AC overlays is recommended as an interim procedure. NDT testing as a construction quality control device during breaking of the PCC is also recommended.
Author | : Imad L. Al-Qadi |
Publisher | : CRC Press |
Total Pages | : 932 |
Release | : 2008-07-30 |
Genre | : Technology & Engineering |
ISBN | : 0203882199 |
Download Pavement Cracking Book in PDF, ePub and Kindle
Internationally, much attention is given to causes, prevention, and rehabilitation of cracking in concrete, flexible, and composite pavements. The Sixth RILEMInternational Conference on Cracking in Pavements (Chicago, June 16-18, 2008) provided a forum for discussion of recent developments and research results.This book is a collection of papers fr
Author | : |
Publisher | : |
Total Pages | : 598 |
Release | : 2000 |
Genre | : Air travel |
ISBN | : |
Download Transportation Research Record Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 172 |
Release | : 1977 |
Genre | : Pavements |
ISBN | : |
Download Overlay Design and Reflection Cracking Analysis for Rigid Pavements Book in PDF, ePub and Kindle
Fatigue cracking and reflection cracking criteria were developed and incorporated into a design procedure for flexible and rigid overlays of rigid pavements. Linear elastic layered theory is the basic model used to compute stresses and strains in the pavement system, which are then input to the fatigue and reflection cracking models. The fatigue criteria developments resulted from analyses of the performance of rigid pavements at the AASHO Road Test.
Author | : United States. Federal Highway Administration. Office of Research |
Publisher | : |
Total Pages | : 248 |
Release | : 1977 |
Genre | : Pavements |
ISBN | : |
Download Overlay Design and Reflection Cracking Analysis for Rigid Pavements Book in PDF, ePub and Kindle
Author | : H. J. Treybig |
Publisher | : |
Total Pages | : 252 |
Release | : 1977 |
Genre | : |
ISBN | : |
Download Overlay Design and Reflection Cracking Analysis for Rigid Pavements. Volume 1. Development of New Design Criteria. Phases II and III. Final Report Book in PDF, ePub and Kindle